About the role#
We are looking for a hands-on Mechanical or Industrial Engineering Co-op to support our thermal test lab and product validation efforts. This role is for someone who enjoys building, troubleshooting, and working directly with hardware. You will work with engineering and production teams to execute thermal and fluidic testing, develop test setups, and generate data that informs product development and customer deliverables.
What you'll do#
- Build, assemble, and maintain thermal and fluidic test setups including pumps, heat exchangers, sensors, and plumbing.
- Execute testing on cooling plates and assemblies, including leak testing, flow rate measurement, pressure drop characterization, and thermal performance evaluation.
- Instrument test setups with thermocouples, pressure sensors, and flow meters.
- Collect, clean, and organize test data for analysis.
- Support the development and refinement of standardized test methods.
- Troubleshoot test setups, fixtures, and data acquisition systems.
- Collaborate with engineering to evaluate new designs and process improvements.
- Assist in documenting results for internal reports and customer-facing materials.
- Maintain lab organization, safety, and repeatability across test specimens.
What you'll need#
- Pursuing a degree in Mechanical Engineering, Industrial Engineering, or a related field.
- Strong hands-on aptitude and interest in building and debugging physical systems.
- Basic understanding of heat transfer, thermodynamics, and fluid mechanics.
- Experience with lab equipment, instrumentation, or test setups from academic or internship roles.
- Ability to work independently and take ownership of tasks from setup through execution.
- Strong attention to detail and a commitment to repeatable, high-quality results.
- Clear written and verbal communication skills.
- Experience with data acquisition systems, sensors, or lab instrumentation.
- Familiarity with Python, MATLAB, or similar tools for data analysis.
- Experience with CAD tools such as Onshape or SOLIDWORKS.
- Exposure to thermal systems, cooling loops, or fluid handling systems.
- Previous co-op, internship, or hands-on project experience in a lab or manufacturing environment.
Location & details#
- Location: Burlington, Massachusetts.
- Term: Fall 2026 (July-December).
- Modality: On-site, full-time.
- Pay: $23-28 per hour.
- Requirements: This position requires access to information subject to U.S. export control laws. Offers are conditioned on authorization to receive controlled items without company sponsorship for an export license. Applicants must be authorized to work in the U.S. without visa sponsorship.
About Alloy Enterprises Inc
Alloy Enterprises Inc manufactures direct liquid-cooled components for high-heat environments. Founded in 2020, the company operates out of Burlington, Massachusetts. It serves sectors including defense electronics, data centers, and photonics. The firm employs between 51 and 200 people. Its proprietary Stack Forging process creates components with micro-scale geometries to manage thermal loads.
How to get in at Alloy Enterprises Inc
Applying early to Alloy Enterprises Inc gives you a distinct advantage because recruiters review the first wave of candidates before the applicant pool grows. Intern Insider sends an instant alert the moment a role matching your target is published, so you can submit your materials among the first. Getting your application in while the queue is short helps ensure your profile is seen. You can also use Intern Insider to surface the recruiters behind these roles and reach out directly to ask about the position or a referral. Connecting with a human at the company materially improves your response rates compared to waiting for a system update. It is a practical way to stand out when you are competing for a spot.



